The International Society for Gastrointestinal Hereditary Tumours (InSiGHT) is an international multidisciplinary, scientific organisation. Our aim is to improve the quality of care of patients and families with any hereditary condition resulting in gastrointestinal tumours

Most hereditary gastrointestinal tumours occur as part of a distinct inherited syndrome. Each of these is due to alteration in a specific gene or one of a group of genes, and has a characteristic set of clinical features.